DS is 17 and has been a reasonably cheerful, if infuriatingly lazy, teenage boy so far. But in the last few months he has got really low emotionally. We are addressing plenty of contributory issues - diet, sleep, exercise - but one of his sources of unhappiness is his skin. He is peppered with spots and nothing really seems to touch them. I sympathise as i was plagued with them in my teens - it seemed to me at the time that I had them for years and they were the most obvious thing about me and they made me miserable. I really want to help him. Can our GP offer anything?